Bay Valley Parts New 6 Cell Battery for Dell Latitude D620 D630 D631 D630N D640 PC764 TC030 GD775 Battery type: Li-ion; Capacity: 58Wh; Cells:6-cell; Voltage: 11.1V;Capacity:5200mah. Compatible Models: For Dell lattitude D620 D630 630 312-0383 451-10298 GD776 JD616 JY366 312-0384 451-10299 GD787 JD634 KD489 312-0386 451-10421 JD605 JD648 KD491 312-0653 451-10422 JD606 JD648 KD492 312-0654 GD775 JD610 JD775 KD494 Part Numbers: KD495 PC764 RC126 TC030 TD175 KP423 PC765 RD300 TD116 TG226 NT379 PD685 RD301 TD117 UD088 replacement notebook laptop battery batteries High quality grade "A" cells. Charges quickly. Longer discharge time. Steady output and low power consumption. More than 500 times charge-discharge cycles.All products are Certified by CE ROHS UL1642 FCC for safety. Operation time for standard batteries(6-cell 5200mah): Around 2 hours the actual operation time will depend on how much electricity is required by the device and how you use it. 24 x 7 email support 12-month service. 12-months hassle-free warranty service. Please check if this battery is compatible with your computer before purchasing. Part numbers of compatible batteries and Computers are listed as following.